Robert Downey Jr., Chris Hemsworth and other talent out in force to promote the Marvel blockbuster

So to further whet your appetite, we've got a video report from the European premiere of the highly anticipated superhero movie:

‘I think [ the audience ] can expect to be surprised by how thorough it is, and how thoughtful it is, and it actually has a lot of heart, too,’ says Robert Downey Jr., whose sentiments are echoed by co-stars Chris Hemsworth and Mark Ruffalo, among the bevy of other A-listers.